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Ceradyne Ceralloy® 147-A Hot Pressed Silicon Nitride (Si3N4)

Category Ceramic , Nitride
Manufacturer Ceradyne Advanced Ceramics
Trade Name Ceralloy®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Ceradyne Ceralloy® 147-A Hot Pressed Silicon Nitride (Si3N4).pdf
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Material Notes:
Ceralloy® 147 Reaction Bonded Silicon Nitride (RBSN) is a high purity grade of silicon nitride. RBSN has excellent thermal shock resistance and outstanding compatibility with non-ferrous molten metals. This lower cost alternative to the fully dense silicon nitride grades can be manufactured to close tolerance without the need for expensive diamond grinding.Features: High Purity Excellent Mechanical Properties Applications: Semiconductor Components Wear Components Information provided by Ceradyne, Inc.
Physical Properties Metric English Comments
Density 3.18 g/cc
0.115 lb/in³
Porosity 0.00 %
0.00 %
Weibull Modulus 10 - 20
10 - 20
Mechanical Properties Metric English Comments
Vickers Microhardness 1650
1650
HV (0.3); kg/mm<sup>2</sup>
Abrasive Hardness 860
860
Abrasive Wear Resistance Parameter
Modulus of Elasticity 310 GPa
45000 ksi
Flexural Strength 700 MPa
102000 psi
Poissons Ratio 0.23
0.23
Fracture Toughness 4.50 MPa-m½
4.10 ksi-in½
Shear Modulus 126 GPa
18300 ksi
Calculated
Thermal Properties Metric English Comments
CTE, linear 3.20 µm/m-°C

@Temperature 20.0 - 1000 °C
1.78 µin/in-°F

@Temperature 68.0 - 1830 °F
Thermal Conductivity 42.0 W/m-K
291 BTU-in/hr-ft²-°F
Electrical Properties Metric English Comments
Electrical Resistivity 1.00e+16 ohm-cm
1.00e+16 ohm-cm
Dielectric Constant 9.0
9.0
Descriptive Properties Value Comments
Purity, % >99.4
Theoretical Density, % >99.5
Thermal Shock Parameter, °C 517
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